Pedal attachment for pneumatic instruments.



No. 833,215. 1 PATENTED OCT. 16, 1906. C. -HLHUBBELLl 'PEDAL ATTAC ENTFOR PNEUMATIG INSTRUMENTS.

LIOATION FILED rB.12.1so6.

2 SHEETS-SHEET 1.

No. 833,215. PATENTED 00T.16, 1906. o. H. EUBBELL.

PEDAL ATTACHMENT POE PNEUMATIG INSTRUMENTS.

l s@ APPLICATION FILED FBBJR, 1906.

2 SHEETS-SHEET 2 UNITED STATES PATENT OFFICE.

CHARLES H. HUBBELL, OF DERBY, CONNECTICUT, ASSIGNOR. TO THE STERLINGCO., OF DERBY, CONNECTICUT, CORPORATION.

PEDAL ATTACHMENT FOR PNEUMATIC INSTRUMENTS.

Spcification of Letters Patent.

Patented Oct. 1 6, 1 906.

Application filed February 12, 1906. Serial No. 300,646.

To all whom, t may concern:

Be it known that I, CHARLES H. IIUBBELL, a citizen of the United States,residing at Derby, in the county of New Haven and State of Connecticut,have invented a new and useful Improvement in Pedal Attachments forPneumatic Instruments; and I do hereby declare the following, when takenin connection with the accompanying drawings and the numerals ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this specification,and represent, in-

Figure 1, a side view of one of the treads of my improved pedalattachments, showing its location with relation to the pneumaticinstrumentalities and to the case of the instrument in which it is used;Fig. 2, a top or plan view of the pedals in an open position, one of thetreads broken away to show the manner of connecting the two partsthereof, Fig. 3, a broken top or plan view of the inner end of one ofthe toe portions, showing the connections therewith to one of thefeeders; Fig. 4, a side view of the parts shown in Fig. 1 in theirclosed or retired position.

This invention relates to an improvement in pedal attachments forpneumatic instruments, and, while adapted for pneumatic instruments ofvarious characters, is especially `-agpplicable for pneumatically-operated pianos antlin which the pneumatic instru'mentalitiesare arranged `within the piano-case. In such instruments it isdesirable, not to say necessary, that the pedals for operating thepneumatic instrumentalities shall be folded into the case forconvenience in shipping, and especially to give access to the regularpedals of a piano when the pneumatic instrumentalities are not inoperation. In many instruments the exhaust-chamber of thepneumaticaction is arranged in the case below the keyboard, so thatcomparatively little space can be utilized for the pedals.

The object of this invention is to arrange the pedals so that they maybe conveniently and easily retired and brought into operative positionand when retired occupy but very little space in the case; and theinvention consists in the construction, as hereinafter described, andparticularly recited in the claims.

The treads are divided transversely into two sections, which are calledthe heel-sections 2 and the toe-sections 3, the two being hingedtogether at the center, so as to fold upward, the hinge-pin 4 beingbelow the plane of the treads, and on this pin is a spiral spring 5 soconnected at their ends as to normally hold the treads in an openposition. The heel portions 2 are pivoted to the rod 6, which connectsthe outer ends of arms 7, which at their outer ends are adapted to restupon the floor and. at their inner ends are connected to links 8, whichin turn are pivoted to brackets 9, secured to the front face of anexhaust-chamber 10, the inner ends of the links having offset arms 11,which are connected together by a brace-rod12. The arm 7 is formed atits inner end with a stop-linger 13, which bears against the inner edgeof the link 8. The toe portions 3 are connected by curved levers 14 withbrackets 15, secured to the movable portion 16 of the feeders, it being'understood that the feeders are arranged on opposite sides of thecentral opening in the front of the case, through which the pedalsextend, the exhaustchamber 10 being also cut away to give sufficientclearance. The bracket is provided with a lug 17 to limit the movementof the lever 14 when folded and with a stud 18, against which theJringer 19 on the lever 14 will engage when open. As indicated above,the front 20 of the case is cut away above the piano-pcd als 21, whichopening may be closed in any desired manner. As shown in Fig. 1 of thedrawings, the treads are in an operative position and pressure upon thetoe of the treads will force the movable member of the feeders rearward,or, in other words, operate in the usual manner of pedals for pneumaticinstruments.

To retire the pedals, the treads are broken upward and the bar 6 raised,causing the arms l7 to turn upon their pivots with the links 8 and thelinks upon their pivots with the brackets 9, while the toe portion turnswith respect to the bracket 15, but without changing the position of themovable part of the feeders. The treads of the pedals thus fold inwardbetween the feeders and below the central portion of theexhaust-chamber. The upper end of the lug 17 forms a stop to limit theinward movement of the treads, as in the retired position. as shown inFig. 3 of the drawings. The edge of the levers 14 will bear upon theupper ends of these lugs 17. When thus retired, the opening in the casemay be closed and the pedals 21. of the piano operate in the usual way.The pedals are` withdrawn to the operative position by simply graspingthe bar 6 and drawing it outward, which brings the treads to anoperative position and without disturbing the movable member of thefeeders.

I claim- 1. In a pneumatic instrument a case, in

combination with feeders arranged on opposite sides of the center of thecase, pedals arranged to move in a path located laterally to the path ofthe movable portions of said feeders, the treads of the pedals dividedtransversely, arms with which the heel portions are pivotally connected,said arms extending inward, links with which said arms are engaged, saidlinks connected with a fixed point inside the case, levers connectedwith the toe portions, and brackets secured to the movable member of thefeeders, said levers and brackets connected, substantially as described.

2. Ina pneumatic instrument a case, in combination with anexhaust-chamber and feeders, the lower central portion of the eX- haustchamber being lcut away and the feeders being arranged on opposite sidesof said cut-away portion, pedal instrumentalities comprising treadstransversely divided, arms pivotally connected with. the heel portionsofthe treads, links with which the inner ends of said arms are pivoted,brackets secured to the front wall of said exhaust-chamber, said linksconnected. with said, brackets, said links formed with arms, a rodconnecting said arms levers with which the toe portions of the treadsare connected, brackets secured to the movable members of the feeders,said levers and brackets connected, substantially as described.

3. In a pneumatic instrument, a case, in combination with anexhaust-chamber and feeders, the lower central portion of the eX-haust-chamber being cut away, and the feeders being arranged on oppositesides of said cut-away portion, pedal instrumentalities comprisingtreads transversely divided, a spring-hinge connecting the two portionsof each tread, arms with which the heel portions of the treads arepivotally connected, links to which the inner ends of the said arms arepivoted, brackets secured to the front wall of Asaid 'exhaust-chamber,said links being connected with said brackets, and having arms, a rodconnecting said arms, levers with which the toe portions of the treadsare connected, and brackets secured to the movable portions of thefeeders, said levers and brackets being connected, substantially asdescribed.

4. In a pneumatic instrument a case, in

combination withan exhaust-chamber, andV feeders, the lower centralportion of the eX- haust-chamber being cut away, and the feeders beingarranged on op osite sides of said cut away portion, pedainstrumentalities comprising treads transversely divided, arms connectedwith the heel portions of the treads, links connected with the innerends of said arms, brackets secured to the front wall of saidexhaust-chamber, said links and brackets being connected together, saidlinks having arms, a rod connecting said arms, links connected with thetoe portions of the treads, brackets secured to the movable members ofthe feeders, said treads and brackets being connected, and said bracketsbeing formed with a lug to limit the inward movement of the linksconnected with the toe portions, substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

CHAS. H.' HUBBELL.

i Witnesses:

J. R. MASON, PHILIPP E. MooK.

